[MBsysPy] Add AlphaM integrator

MBsysC/mbs_interface/MBsysPy/mbsyspy/mbs_dirdyn.py

@@ -550,8 +550,10 @@ class MbsDirdyn(object):
                     return 6
                 elif value == "WMethods":
                     return 7
-                elif value == "Custom":
+                elif value == "AlphaM":
                     return 8
+                elif value == "Custom":
+                    return 9
                 else:
                     raise ValueError
             else:
@@ -727,6 +729,8 @@ class MbsDirdyn(object):
                 elif self.mbs_dirdyn_ptr.contents.options.contents.integrator == 7:
                     options.append("WMethods")
                 elif self.mbs_dirdyn_ptr.contents.options.contents.integrator == 8:
+                    options.append("AlphaM")
+                elif self.mbs_dirdyn_ptr.contents.options.contents.integrator == 9:
                     options.append("Custom")
             elif key == "verbose":
                 options.append(self.mbs_dirdyn_ptr.contents.options.contents.verbose)